- Added crypto_aead_aes256gcm_*()
- Added crypto_box_seed_keypair()
- Added crypto_sign_ed25519_sk_to_curve25519() and crypto_sign_ed25519_pk_to_curve25519()
- Added compare()
- On PHP7, make memzero() and increment() avoid zeroing an object if it is not a reference or if its reference count is > 1

- Methods were moved to functions in a \Sodium\ namespace.
- PHP 7 is now fully supported.
- crypto_aead_chacha20poly1305_decrypt() now returns FALSE instead of a PHP error if verification fails.
- multi-part hashing was implemented (crypto_generichash_{init|update|final})
- sealed boxes have been implemented (crypto_seal)